Tweco 30 O2 Auto-Cut - Manuel (Page 72)

Manual No. 0-4818 Auto-Cut 300
2
4-4 OPERATION
Gas Control Module: Controls & Indicators
1. MODE Selection Switch
MODE
RUN
SET PREFLOW
SET PLASMA
& SHIELD
TEST
Art # A-06890
ENABLE STATUS
DISABLE
PLASMA
POWER
SUPPLY
SHIELD
FLOW
GAS
PRESSURE
MODE GAS
GCM
2000
PLASMA PREFLOW
9 9
H20
MIST
RUN
SET PREFLOW
SET PLASMA & SHIELD TEST
Automated
Plasma Cutting System
AMPS
Thermal Dynamics
O 2 - AIR
H35 - N 2
AIR - AIR
N 2 - H 2 O
• Normally in the RUN position during torch operation.
• In the SET PREFLOW position, Preflow or Piloting gas (Air or N
2
) flows to the torch allowing the operator to
adjust pressure. Gas automatically shuts off after 2 minutes if left in the SET PREFLOW position.
• In the SET PLASMA & SHIELD position, selected cutting gases, Plasma & Shield, flow to the torch to allow
operator to set the pressure (regulator & gauge) and flow (knob at top of flowmeter). Gases automatically shut
off after 2 minutes if left in the SET PLASMA & SHIELD position. GCM 2000 gas control revision AC or later
includes inlet pressure sensors. In SET PLASMA & SHIELD if either gas pressure is outside the range of 100-
135 PSI the Status LED will blink a code fo 3 blinks followed by a space then repeating the 3 blinks. User must
determine which gas has to be adjusted.
• TEST mode will also cause selected PLASMA & SHIELD gasses to flow to the torch.